{"product_id":"632491r-nordyne-pressure-switch","title":"632491R Nordyne Pressure Switch","description":"\u003ch1\u003e632491R Nordyne Pressure Switch\u003c\/h1\u003e\n\u003ch2\u003eProduct Overview\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003e632491R is an official OEM Nordyne pressure switch designed to monitor inducer draft in residential gas furnaces. It features a single pole, single throw contact that closes when a vacuum of –1.50\" WC is reached, ensuring safe ignition and combustion control.\u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv class=\"relative pb-6 w-full after:border-b after:border-stroke-300 after:w-full after:absolute after:mt-3\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eDetail\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number\u003c\/td\u003e\n\u003ctd\u003e632491R\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePressure Set Point\u003c\/td\u003e\n\u003ctd\u003e–1.50\" WC (activates at –1.50 inches water column)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum Make Point\u003c\/td\u003e\n\u003ctd\u003e–1.70\" WC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eContact Type\u003c\/td\u003e\n\u003ctd\u003eSPST (Single Pole Single Throw)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConnection\u003c\/td\u003e\n\u003ctd\u003e1\/4\" barbed tube\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHousing Material\u003c\/td\u003e\n\u003ctd\u003eHigh-impact thermoplastic\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMounting Bracket\u003c\/td\u003e\n\u003ctd\u003eIntegrated zinc-plated steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e0.08 lb (36.3 g)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp\u003e\u003cspan\u003eSpecifications compiled from OEM data and industry references. Pressure switch set point and contact type from SupplyHouse. Connection details from Neuco listings\u003cspan class=\"mx-0.5 inline-block h-5 w-4 pb-1 align-middle\" data-copy=\"false\"\u003e\u003cbutton id=\":r1k7:\" aria-expanded=\"false\" aria-controls=\":r1k6:\" aria-label=\"Citation 2\" type=\"button\"\u003e2\u003c\/button\u003e\u003c\/span\u003e. Maximum make point from Intertherm cross-reference.\u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv class=\"relative pb-6 w-full after:border-b after:border-stroke-300 after:w-full after:absolute after:mt-3\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003ch2\u003eCross-Reference Part Numbers\u003c\/h2\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eOEM Part Number\u003c\/th\u003e\n\u003cth\u003eNotes\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e632491R\u003c\/td\u003e\n\u003ctd\u003eCurrent OEM Nordyne pressure switch\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e632491\u003c\/td\u003e\n\u003ctd\u003eOriginal non-R version; often superseded\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003ch2\u003eCompatibility\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003eFits Nordyne, Miller-Nordyne, Nortek Global HVAC, and Intertherm furnaces originally equipped with a –1.50\" WC pressure switch. Common applications include:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eNordyne CMF95, M8 series single-stage induced-draft gas furnaces\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eIntertherm M4RL mobile-home furnace models\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eMiller-Nordyne CF and CT series light-commercial furnaces\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eAlways verify the appliance’s data plate for pressure switch requirements before ordering.\u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003ch2\u003eTechnician Notes\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eDe-energize electrical power and shut off gas before servicing.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eInspect the existing 1\/4\" vacuum tubing for cracks or blockages; replace if necessary.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eMount the new switch on the furnace’s bracket, ensuring the barb is fully seated in the tubing.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eReconnect the SPST terminals according to the wiring diagram or service manual.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eRestore power and initiate a heat call; confirm inducer motor starts and switch closes at –1.50\" WC.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eUse a manometer to verify opening and closing pressures: switch should open above –1.50\" WC and close below –1.70\" WC.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eCheck for vacuum leaks around the barb and switch housing\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Neuco","offers":[{"title":"Default Title","offer_id":16078958231618,"sku":"632491R","price":31.19,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1071\/8320\/files\/OPHS_94e135ef-70a7-4fe5-ba27-e356cd55ac15.jpg?v=1756237192","url":"https:\/\/hvacpartstore.com\/products\/632491r-nordyne-pressure-switch","provider":"HVACpartstore","version":"1.0","type":"link"}